Instrument case



FIG. 1 is a front elevational view of the instrument case showing the new design;

FIG. 2 is a rear elevational view of the instrument case illustrated in FIG. 1;

FIG. 3 is a right side elevational view of the instrument case illustrated in FIG. 1;

FIG. 4 is a left side elevational view of the instrument case illustrated in FIG. 1;

FIG. 5 is a top plan view of the instrument case illustrated in FIG. 1;

FIG. 6 is a bottom plan view of the instrument case illustrated in FIG. 1; and,

FIG. 7 is a plan view of the instrument case illustrated in FIG. 1, showing the instrument case in an open position. 

CLAIM The ornamental design for an instrument case, as shown and described. 